We are seeking a licensed Mechanical Engineer to support the planning, coordination, design and execution of mechanical systems on complex construction projects. This role is ideal for an engineer who enjoys working collaboratively with project teams, designers, and trade partners, and who wants to deepen their technical expertise while staying closely connected to both the field and office.
Responsibilities- Support the planning and coordination of mechanical systems including HVAC, process piping, plumbing, fire protection and related building systems
- Review drawings and specifications for constructability, coordination, and clarity
- Assist with mechanical scope development, system layouts, and sequencing strategies
- Develop complete engineering documents for mechanical systems including plans and specifications
- Collaborate with Project Managers, Site Engineers, Superintendents, and MEP team members to resolve design and field issues
- Participate in coordination meetings with design teams, trade partners, and owners
- Support review of submittals, RFIs, and shop drawings related to mechanical systems
- Assist with field observations to verify installation aligns with drawings and specifications
- Support system start‑up, testing, commissioning, and closeout documentation
- Contribute to continuous improvement efforts, lessons learned, and best practices development
- Uphold JP Cullen’s standards for safety, quality, and teamwork on every project
- Bachelor’s degree in Mechanical Engineering and Professional Engineering license
- At least five years of Design experience. Advanced expertise and experience in the current release of AutoCAD and Revit
- Understanding of HVAC systems, mechanical equipment, and building systems coordination
- Ability to read and interpret construction drawings and specifications
- Strong communication skills with the ability to collaborate across disciplines
- Organized, detail‑oriented, and comfortable managing multiple priorities
- Willingness to engage in both office and active jobsite environments
At JP Cullen, we specialize in the “Tough Jobs” no one else can do. For more than 130 years, we’ve delivered complex, high-profile projects across healthcare, education, industrial, and commercial markets by investing in great people, strong teams, and continuous improvement. We’re a 5th generation, family-owned construction management firm that believes people do their best work when they’re supported, challenged, and trusted.
Our Mission: To identify, hire, train, and retain the best people to serve our customers.
Compensation & BenefitsJP Cullen has a commitment to its community, employees, and employees’ families. We offer outstanding benefits — Health Insurance, Dental, Competitive Pay and Bonus Structure, Profit Sharing, PTO, Holiday Pay, Employee Assistance, and Training.
EEOJP Cullen is an Equal Employment Opportunity/Affirmative Action (EEO/AA) Employer. We promote diversity by proactively recruiting, hiring, and promoting women, minorities, disabled individuals, and veterans. JP Cullen provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire
Skills Required
- Bachelor's degree in Mechanical Engineering
- Professional Engineering license
- At least five years of design experience
- Advanced expertise in the current release of AutoCAD
- Advanced expertise in the current release of Revit
- Understanding of HVAC systems, mechanical equipment, and building systems coordination
- Ability to read and interpret construction drawings and specifications
- Strong communication and cross-disciplinary collaboration skills
- Ability to manage multiple priorities in an organized and detail-oriented manner
- Willingness to work in office and active jobsite environments
What We Do
J.P. Cullen is a longstanding, full-service construction company headquartered in Janesville, Wisconsin. The national contractor offers design-build, preconstruction, referendum, and related construction services, serving Wisconsin, northern Illinois, and northeast Iowa, as well as industrial clients nationwide. Its work spans government, education, healthcare, commercial, and industrial projects, ranging from $1,000 to more than $100 million, while emphasizing quality, integrity, and long-term partnerships.
